Buying property in LLC's name

[Roonaj Kanganathan]

Hi, any help with answering this will be appreciated. 

Suppose that there is an LLC that has me as a member - LLC (A)

LLC (A) is listed as a Manager for LLC(B).

I am the equity investor in this whole thing.

If I want to buy a property in the name of LLC(B), who's account should the money come from?

1) LLC(A)

2) My account <-----(preferred option)

2) LLC(B) <-------(second preferred option)